Co-Prime Frequency and Aperture Design for HF Surveillance, Wideband Radar Imaging, and Nonstationary Array Processing
Abstract
The proposed research employs co-prime sampling and arrays to improve radar sensing andsurveillance in both narrowband and wideband signal platforms. The main objectives are threefold:(1) Increased aperture and improved spatial resolution, enabling separation betweenindividual targets and clutter in both active and passive HF radars; (2) Combating ambiguity andproviding unique answers to target location coordinates in active and passive wideband radarsensing under forced coarse sampling in time, frequency, and space. These constraints can beimposed by cost, fast acquisition time, and unavailability of specific frequencies and antennalocations; (3) Improving direction finding of sources of nonstationary signals, as emitters orreflectors of EM waves, by integrating co-prime arrays with joint time-frequency signalrepresentations. In essence, each of these two approaches, though based on a different premise,allows dealing with more sources than sensors.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 05, 2017
- Source ID
- N000141712396
Entities
People
- Moeness Amin
Organizations
- Office of Naval Research
- United States Navy
- Villanova University